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micromechanisms

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Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002352
EISBN: 978-1-62708-193-1
... versus load ratio in a vacuum. Source: Ref 62 Abstract This article provides a brief description of the different types of micromechanisms of monotonic and cyclic fracture. General information on the material variables that have the most beneficial effect on resistance to failure is presented...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003377
EISBN: 978-1-62708-195-5
.... The analytical methods used are the result of studies of the relationship between the effective properties of composites and their constituents (studies that, although not actually conducted at a microscopic level, are frequently described by the term micromechanics). When the relationships between the overall...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003399
EISBN: 978-1-62708-195-5
... of micromechanics and analysis is to use the predictive methodology to develop tailored composites and also to make accurate predictions of their performance in service. This article reviews results derived from micromechanics analyses, based on finite-element method of unidirectional fiber reinforced metal matrix...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005418
EISBN: 978-1-62708-196-2
... Abstract Self-consistent models are a particular class of models in continuum micromechanics, that is, the field concerned with making predictions of the properties and evolution of aggregates whose single-crystal deformation behavior is known. This article provides information...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... Abstract Mechanical testing is an evaluative tool used by the failure analyst to collect data regarding the macro- and micromechanical properties of the materials being examined. This article provides information on a few important considerations regarding mechanical testing that the failure...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005502
EISBN: 978-1-62708-197-9
... versus compaction pressure with no friction and with a friction coefficient of 0.1 for two compact samples. Source: Ref 24 Abstract This article presents the governing equations and methodologies to model the press and sinter powder metallurgy, including continuum, micromechanical...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003389
EISBN: 978-1-62708-195-5
... of materials properties and post-processing of numerical results. It discusses the analysis of composite structures based on micromechanics and macromechanics. The article describes the FEA of 3-D solid elements, 2-D cylindrical shell elements, and 1-D beam elements. It contains a table that lists...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003376
EISBN: 978-1-62708-195-5
..., Volume 21: Composites. The section introduces many of the engineering approaches used in composite industry. Mechanics Analysis Design The mechanics area addresses composites at two levels: micromechanics and macromechanics. The article “Micromechanics” provides an understanding...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003390
EISBN: 978-1-62708-195-5
...Capabilities of three programs for composites analysis Table 1 Capabilities of three programs for composites analysis Program Interface Database Micromechanics Macromechanics Structures Design CompositeProVersion: 3.0 BetaOS: Windows 3. x , 9 x , NT x , W2KPublisher: Peak...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003379
EISBN: 978-1-62708-195-5
... Micromechanical model to relate lamina-level strains to constituent-level strains in unidirectional lamina. Shading represents contours of constant J 1 , which is the sum of the three principal strains. Typically, radial strains in the matrix immediately adjacent to the fibers are negative, so J 1 is lower...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005405
EISBN: 978-1-62708-196-2
... of Microstructure Variability on Intrinsic Fatigue Resistance of Nickel-Base Superalloys – A Computational Micromechanics Approach , Int. J. Fracture , Vol 137 , 2006 , p. 173 – 210 41. Shenoy M. , Zhang J. , and McDowell D.L. , Estimating Fatigue Sensitivity to Polycrystalline Ni-Base...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003383
EISBN: 978-1-62708-195-5
..., the longitudinal shear modulus of carbon-fiber-reinforced plastic (CFRP) or glass-fiber-reinforced plastic (GFRP) is principally a function of the matrix shear modulus, the fiber shear modulus, and the volume fraction of fibers. None of the existing micromechanics theories accurately fits the experimental data...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001348
EISBN: 978-1-62708-173-3
.... , On the Micromechanics of Brittle Fracture: Existing vs Injected Cracks , Acta Metall. , Vol 37 , 1989 , p 87 – 97 10.1016/0001-6160(89)90269-1 6. Hack J. , Chen S.P. , and Srolovitz D. , A Kinetic Criterion for Quasi-Brittle Fracture , Acta Metall. , Vol 37 , 1989 , p 1957 – 1970...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003400
EISBN: 978-1-62708-195-5
...: The micromechanics of matrix cracking, interface debonding and sliding, and their roles in the macroscopic stress–strain response are very well understood. Indeed, there exists a vast scientific literature dealing with this class of problems (see, for example, Ref 16 , 17 , and 18 ). Despite their large...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
... in this region. Careful correlation of microscopic fracture-surface topography with macroscopic fracture-surface features is essential. The crack-initiation region and the directions of crack growth must be identified accurately so that information concerning the sequence of events and the micromechanisms...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005421
EISBN: 978-1-62708-196-2
... of stress may be reduced in size during a change in strain path, during which the stress state becomes compressive. A micromechanical model that describes cavity-shrinkage kinetics has been developed and applied ( Ref 50 ). In this approach, the stresses developed within the soft grains/colonies during...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003318
EISBN: 978-1-62708-176-4
... thermal conductivity contributes to micromechanisms of permanent deformation including craze formation, shear bands, voids, or even microcracks ( Ref 8 ). Fig. 4 Plot showing the effect of increasing test frequency and stress amplitude on the fatigue failure of polyacetal The hysteresis...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006331
EISBN: 978-1-62708-179-5
... Quality , Int. J. Cast Met. Res. , Vol 25 ( No. 3 ), June 2012 , p 176 – 187 10.1179/1743133611Y.0000000038 14. Bonora N. and Ruggiero A. , Micromechanical Modeling of Ductile Cast Iron Incorporating Damage, Part I: Ferritic Ductile Cast Iron , Int. J. Solids Struct. , Vol...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002413
EISBN: 978-1-62708-193-1
... A. , Micromechanical Study of Ductile Polycrystalline Materials , J. Mech. Solids , Vol 41 , 1993 , p 1711 – 1722 10.1016/0022-5096(93)90028-E 25. Zubelewicz A. , “Micromechanical Approach to Model Solder Materials,” paper presented at Lead Free Solders Conf. (Evanston, IL) , 24 – 26 July...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001347
EISBN: 978-1-62708-173-3
... microscopy, first principles energy band calculations, and embedded atom potential calculations) with appropriate correlations to both micromechanics and a macroscopic level, and vice versa. The computational and experimental tools that begin to provide insight at these levels have only recently been...